If you are ordering a 20mm thick plate to , the standard allows surface seams up to a certain depth (typically not more than 5% of the nominal thickness, with a maximum limit). If the depth exceeds that, the steel must be rejected or repaired.
When reading your , you may notice overlaps. Distinguish it from: en 10163-2 pdf
: Repair by welding is strictly prohibited; only grinding is allowed. Practical Applications If you are ordering a 20mm thick plate
surface discontinuities (imperfections vs. defects). Distinguish it from: : Repair by welding is
You need for as-rolled surface imperfections. You need ISO 8501 for after-pickling or after-blasting surfaces.
The EN 10163-2 PDF standard affects a range of industries that use flat products made of structural steels, including:
It provides clear classifications (e.g., Class A, B, C, D) with increasing levels of surface quality, allowing buyers and suppliers to agree on the expected finish—from general construction use to demanding applications like pressure vessels or offshore structures.